These are net CO2e emissions after sinks. That 10% from ag is mostly CH4 from enteric fermentation (and also manure management) and N2O from soils/fertilizer. Nothing is “hard to decarb” but this is close. Precision ag for nutrients can help with N2O. @metaomicsnerd.bsky.social is innovating on CH4

I think these are gross emissions before sinks (6.3 Gt total). Below that plot, EPA writes, "Land Use, Land-Use Change, and Forestry in the United States is a net sink and offsets 13% of these greenhouse gas emissions. This net sink is not shown in the above diagrams."